Hello,
I've been asked as the resident techy here to spy on a users public facebook page.

The person is on facebook on his phone while he's supposed to be working and has been caught a few times but denies it. We've been advised to get detailed information and screenshots to move for dismissal.
My question: Is there a website that will have a look through someones public facebook profile and show the posts within a time range or search by keyword? Facebook shows "2 hours ago" so i'd have to calculate the times which is just a bit time consuming

Ta.